Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP6852492
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic tire for suppressing breakage of a breaker layer in travel time of a tire, and improving durability of a tire.SOLUTION: Two or more breaker layers 7, 8 are provided on outside of a tire radial direction of a carcass layer 4 of a tread part 1, a width TW1 of an outermost breaker layer 7 is wider than a width TW2 of other breaker layer 8, the outermost breaker layer 7 is arranged to cover the adjacent breaker layer 8 in the tire width direction, a cord angle θ2 of a second intermediate position P2 in the outermost breaker layer 7 is larger than a cord angle θ1 of a first intermediate position P1, and a difference (θ2-θ1) of these cord angles is 10°-25°, and an end count E2 of the second intermediate position P2 on the outermost breaker layer 7 is smaller than an end count E1 of the first intermediate position P1, and a difference (E1-E2) of these end counts is 10 pieces/50 mm-20 pieces/50 mm.SELECTED DRAWING: Figure 2
Inventors:
Kakuda Shoei
Application Number:
JP2017055916A
Publication Date:
March 31, 2021
Filing Date:
March 22, 2017
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
B60C9/06; B60C9/00; B60C9/18; B60C9/20
Domestic Patent References:
| JP2010184666A | ||||
| JP7156613A | ||||
| JP6055907A |
Foreign References:
| CN203267673U |
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Masao Sakaizawa
Takayoshi in the daytime
Masao Sakaizawa